Americans who are horrified that weird-haired mogul Donald Trump could soon become president have found help from an unlikely source - the British Army.

A group of soldiers in Washington DC yesterday jokingly told a US reporter they were there to rescue the former British colony from the controversial business magnate, who is the front-runner for the Republican 2016 race to the White House.

Benny Johnson, a Washington-based reporter for American news website the Independent Journal Review, posted this picture on Instagram and wrote:

Me: "Hey guys, nice bagpipes. Who are you with?

Guy with bagpipes: "The British Army."

Me: "Not every day ya see the British Army marching on Capitol Hill.”

Soldier on the far left: "We saw Donald Trump was about to become President so we thought it was a good time to invade and help you out.”